Verisign SSL installation

Hi everyone, I have ordered a SSL certificate to verisign, now I just sent the CSR code to verisign and I'm waiting for the approval. After the approval what should I do? because some tutorials talks about replace the files on the ssl folder, and other one just paste the one code like CSR on the last box in the SSL tab. In order to don't spoil the server, what should I do in the specific case of VeriSign?Someone has installed a SSL certificate from VeriSign in ISPconfig 3?

Thanks in advance.

By the way, I have a Ubuntu 12.04.1 LTS platform running a Apache server, installed following the steps in: Perfect Ubuntu server with ISPconfig 3